Size of UF Ceramic Ferrule: UF6~UF25
Main Raw Material: Cordierite
Original: Jiangsu, China
Delivery time: Around 15~20 days after receiving deposit
UF Ceramic Ferrule
UF ceramic ferrule is designed for unthreaded stud and shear connector, there are two types of UF type, one is for normal welding with 20 teeth, another is for through deck(it is also called thru-deck) welding with 8 teeth. It is widely used for magnetic force floating railway engineer, building bridge, building railway, large power plant, plane depot that needs wide span.
Parameter of Ceramic Ferrule | ||
---|---|---|
No | Item | Value |
1 | Main Chemical Ingredient | 2MgO, 2Al2O3, 5SiO2 |
2 | Bulk Density | 2.5gm/cc |
3 | Max Using Temperature | 1000℃ |
4 | Water Absorption | 0.1% |
5 | Hardnedd | 800HV |
6 | Bending Strength | 900Kgf/cm2(20℃) |
7 | Compressive Strength | 3500Kgf/cm2(20℃) |
8 | Coefficient of Thermal Expansion | ≤2.0(1*10-6/℃) |
9 | Dielectric Constant | 6(1MHz 25℃) |
10 | Dielectric Strength | 10 ac-KV/mm(ac V/mil) |
11 | Volume Resistivity | >1012 ohm-cm(20℃) |
12 | Color | White, light yellow, etc |



Dimensions of Ceramic Ferrules for Unthreaded Studs and Shear Connectors(UF) | ||||
---|---|---|---|---|
Dimensions in milllimeters | ||||
Form | ![]() | ![]() | ![]() | ![]() |
UF6 | 6.2 | 9.5 | 11.5 | 8.7 |
UF8 | 8.2 | 11 | 15 | 8.7 |
UF9.5 | 9.9 | 16.5 | 20.2 | 9.9 |
UF10 | 10.2 | 15 | 17.8 | 10 |
UF12 | 12.2 | 16.5 | 20 | 10.7 |
UF12.7 | 13.1 | 19.9 | 22.2 | 11.1 |
UF13 | 13.1 | 20 | 22.2/26 a | 11 |
UF16 | 16.3 | 26 | 30 | 13 |
UF19 | 19.4 | 26 | 30.8 | 16.7 |
UF22 | 22.8 | 30.7 | 38.5 | 18.5 |
UF25 | 26.0 | 35.5 | 41 | 21 |
a At the manufacturer's discretion |
Mass of ceramic ferrule | |||
---|---|---|---|
Size | Weight(Kg/pcs) | Quantities(Pcs/carton) | Total weight(Kgs/carton) |
UF13 | 0.0043 | 4000 | 17.2 |
UF16 | 0.0086 | 2200 | 18.92 |
UF19 | 0.01 | 2000 | 20 |
UF22 | 0.018 | 1100 | 19.8 |
UF25 | 0.019 | 1000 | 19 |
Benefits of PF Ceramic Ferrule
- Good concentricity and consistency
- Excellent wear and heat resistance
- High strength, endurability, and anti-aging performance
- Extremely precise design as well as customized products
Why chooses Sino Stone?
Sino Stone choose quality cordierite and other raw material from famous company Sinopec Group and Sinopec Shanghai Petrochemical Company Limited with good mechanical properties and weld performance, which can ensure the stud welding’s results.


PACKAGING FOR PF CERAMIC FERRULE
Firstly, the ceramic ferrules are packaged in carton layer by layer.
Secondly, the cartons are loaded in pallet binding with plastic sheeting for repelling moisture.
Finally, the pallets are put in the container.






Sino Stone can also package according to the clients’ requirements.